But claims made by Mr Maddah on Twitter that a female reveller was "seriously burned" and "disfigured" by a flare appear incorrect.

The Ambulance Service of NSW did not treat anyone for serious burns at the event, although St John Ambulance staff did treat three people for minor burns and dozens of others for minor injuries and exhaustion.

One woman posted pictures of her injuries online and said she was hit by a flare.

"I'm not disfigured guys, there's just a small hole in my shoulder - gosh," the Newcastle resident wrote on the photo sharing site Tumblr.

She posted two pictures showing reddened skin and a bloodied gash about one centimetre wide.

The woman, who did not post her name on the site, described being hit by the flare during a performance by British band Bring Me The Horizon.

"Someone decided to let off a flare in the middle of the mosh - that was all well and good, as I was one person away from the barrier.

"Until someone decided to throw one towards the stage, this just happening to hit me on the shoulder.

"I was then pushed to the ground by the crowd, almost landing on the damn flare."

She described being shoved up against a security barrier before being rescued and taken for treatment.

She went to Belmont hospital, near Newcastle, for several stitches.

Dramatic footage of a flare being lit at the festival was posted to YouTube.

The video shows the flare burning on top of the stage before falling into the crowd.